Adani Ports and Special Economic Zone Limited paid coupons, the two sources, speaking on condition of anonymity, said.
The source with knowledge of the firm's strategy said Adani Transmission also processed bond payments on Thursday.
Adani Group plans to issue a credit report by Friday which will address concerns raised by the Hindenburg report about its liquidity, the same source said.
Brokerage CLSA estimated in a Jan, 26 report that consolidated debt of the top five Adani Group companies -- Adani Enterprises, Adani Ports, Adani Power, Adani Green and Adani Transmission, with some element of double counting – stood at 2.1 trillion Indian rupees ($25.60 billion).
The U.S. dollar-denominated bonds of Adani Ports and Special Economic Zone (APSE.NS), Adani Transmission (ADAI.NS) and Adani Electricity Mumbai were also trading lower.